diff --git a/backend/ddang/src/main/java/com/ddang/ddang/auction/domain/Auction.java b/backend/ddang/src/main/java/com/ddang/ddang/auction/domain/Auction.java
index 5d8025753..af22792ea 100644
--- a/backend/ddang/src/main/java/com/ddang/ddang/auction/domain/Auction.java
+++ b/backend/ddang/src/main/java/com/ddang/ddang/auction/domain/Auction.java
@@ -191,4 +191,8 @@ public Optional<User> findLastBidder() {
 
         return Optional.of(lastBid.getBidder());
     }
+
+    public Optional<Bid> findLastBid() {
+        return Optional.ofNullable(lastBid);
+    }
 }
diff --git a/backend/ddang/src/main/java/com/ddang/ddang/bid/application/BidService.java b/backend/ddang/src/main/java/com/ddang/ddang/bid/application/BidService.java
index d2c6a4e97..044bf3b2f 100644
--- a/backend/ddang/src/main/java/com/ddang/ddang/bid/application/BidService.java
+++ b/backend/ddang/src/main/java/com/ddang/ddang/bid/application/BidService.java
@@ -87,18 +87,18 @@ private void checkInvalidAuction(final Auction auction) {
     }
 
     private void checkInvalidBid(final Auction auction, final User bidder, final CreateBidDto bidDto) {
-        final Optional<Bid> lastBid = bidRepository.findLastBidByAuctionId(bidDto.auctionId());
-        final BidPrice bidPrice = processBidPrice(bidDto.bidPrice());
-
         checkIsSeller(auction, bidder);
 
-        if (lastBid.isPresent()) {
-            checkIsNotLastBidder(lastBid.get(), bidder);
-            checkInvalidBidPrice(lastBid.get(), bidPrice);
-            return;
-        }
+        final BidPrice bidPrice = processBidPrice(bidDto.bidPrice());
 
-        checkInvalidFirstBidPrice(auction, bidPrice);
+        auction.findLastBid()
+                .ifPresentOrElse(
+                        lastBid -> {
+                            checkIsNotLastBidder(lastBid, bidder);
+                            checkInvalidBidPrice(lastBid, bidPrice);
+                        },
+                        () -> checkInvalidFirstBidPrice(auction, bidPrice)
+                );
     }
 
     private BidPrice processBidPrice(final int value) {